INPUT_OBJECT
Input type for updating a theme variable
input UpdateThemeVariableInput {# Variable ID (auto-generated UUID)id: String# Variable namename: String!# Variable typetype: ThemeVariableType!# Is this a CSS variable?isCssVar: Boolean# CSS variable name (e.g., --header-height)cssVarName: String# Default value (structure depends on type)defaultValue: Json!}